package exception;

public class TryCatchDemo {
    public static void main(String[] args) {
        System.out.println("程序开始了");
        try {
            //String line = null;
            String line = "a";
            System.out.println(line.length());
            System.out.println(line.charAt(0));
            System.out.println(Integer.parseInt(line));
            System.out.println("!!!!!!!!!!!!!!!!!!");
//        }catch (NullPointerException e){
//            System.out.println("异常解决了");
//        }catch (StringIndexOutOfBoundsException e){
//            System.out.println("出现了字符串下标越界异常并且解决了");
//        }
        }catch(NullPointerException|StringIndexOutOfBoundsException e){
            System.out.println("出现了空指针或下标越界并解决了");
        }catch (Exception e){
            System.out.println("对不起发生了一个未知的错误");
        }
        System.out.println("程序结束了");
    }
}
